Friday, May 18, 2018

Abstract-Plasmonic Heterodyne Terahertz Spectrometry

We demonstrate a new class of terahertz spectrometers that use plasmonic photomixers as frequency downconverters to offer quantum-level sensitivity at room temperature. We demonstrated double-sideband noise temperatures of 120–270 K (10hv/k -2hv/k) over 0.1–2 THz, equivalent to 10-2 photons.